<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="/static/echarts.min.js"></script>
</head>
<body>
    <div>
        {{data_number.a}}
    </div>
    <div id="main" style="color: powderblue; width: 600px;height: 600px;"></div>
    <script>
        var myChart = echarts.init(document.getElementById("main"))
        var option;

option = {
    xAxis: {
        type: 'category',
        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
    },
    yAxis: {
        type: 'value'
    },
    series: [{
        data: [120, 200, 150, 80, 70, 110, 130],
        type: 'bar',
        showBackground: true,
        backgroundStyle: {
            color: 'rgba(180, 180, 180, 0.2)'
        }
    }]
};

myChart.setOption(option);
    </script>
</body>
</html>